CN202441769U - Safe drum brake - Google Patents
Safe drum brake Download PDFInfo
- Publication number
- CN202441769U CN202441769U CN2012200907509U CN201220090750U CN202441769U CN 202441769 U CN202441769 U CN 202441769U CN 2012200907509 U CN2012200907509 U CN 2012200907509U CN 201220090750 U CN201220090750 U CN 201220090750U CN 202441769 U CN202441769 U CN 202441769U
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- CN
- China
- Prior art keywords
- brake
- roller
- stopped
- drum
- brake shoes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000005096 rolling process Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000452 restraining effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a safe drum brake comprising a casing, a brake shoe and a brake arm assembly. One end of the brake shoe is rotatably connected with the casing, and a brake wheel connected with the brake arm assembly is arranged in the gap between the other end of the brake shoe. A pin roller is disposed between the brake wheel and the brake shoe in contact mode. The pin roller is meshed with the brake shoe in a tooth shape, thereby effectively preventing the pin roller from slipping in the process of brake, increasing brake reliability of the drum brake, avoiding dislocation of the pin roller, improving the smoothness of movement of the pin roller, and enhancing brake stability of the drum brake.
Description
Technical field
The utility model relates to a kind of drum and stops.
Background technique
Drum is stopped and has been applied in above the automobile nearly centurial history, but because its reliability and powerful braking force make drum brakes still be configured on many vehicles now.As shown in Figure 1, the most existing drum is stopped and mainly is made up of shell 01, a pair of brake shoes 02, brake cam 05, brake rocker 03 and reset components 04.During braking, brake rocker drives brake cam and rotates, and brake cam forces brake shoes 02 expansion and contacts with brake hub, produces friction and then realizes brake, after the end of braking, relies on reset components that brake shoes 02 is retracted original position.In the braking process; Between brake shoes 02 and brake hub, produce the wearing and tearing, can produce wearing and tearing equally between brake cam and the brake shoes, and these wearing and tearing concentrate on all the time on the several points or face of brake cam; Greatly shortened the working life of brake cam; In addition, existing drum is stopped and is also existed braking moment little, the shortcoming that braking effect is poor, the car brakeing coasting distance is big.Technician's improvement of stopping to drum at present mainly concentrates on brake shoes and the shell, to brake cam and to drive the architecture advances of brake shoes expansion very few for it, therefore rouses the existing above-mentioned defective of stopping and fails effectively to be solved always.
Summary of the invention
The utility model problem to be solved just provides a kind of safety drum and stops, and changes original drum and stops and adopt cam directly to drive the working method of brake shoes expansion, effectively improves existing drum braking weak effect, shortcoming that the car brakeing coasting distance is big.
For solving the problems of the technologies described above; The utility model adopts following technological scheme: a kind of safety drum is stopped; Comprise shell, brake shoes and brake arm assembly, an end of said brake shoes is transferred on said shell, is provided with the brake wheel that is connected with said brake arm assembly between another end gap of said brake shoes; Butt has roller between said brake wheel and the said brake shoes, is the profile of tooth engagement between said roller and the said brake shoes.
Further, the end face of the said roller of said brake shoes butt is provided with rack member, and said roller is provided with first flank of tooth with said rack member engagement.
Further, the two ends of said rack member are provided with spacing preiection.
Further, said rack member and said brake shoes one.
Further, said brake wheel is provided with the rotation rolling edge face that the rotation that promotes the roller rotation drives edge face and the rolling of confession roller, and it is the arc surface of indent that said rotation drives the edge face, and said rotation rolling edge face is the arc surface of evagination.
Further, be the profile of tooth engagement between said rotation rolling edge face and the said roller.
Further, said rotation rolling edge face is designed to gear hobbing face, and said roller is provided with second flank of tooth with said gear hobbing face engagement.
Further, said roller is a Cylindrical Gear.
The beneficial effect of the utility model:
1, original drum is stopped and is adopted cam directly to drive the brake shoes expansion, produces sliding friction between cam and the brake shoes, and friction concentrates on the several points or face of cam all the time, causes cam wear serious, thereby shortens its working life; The principle of the utility model is: the brake arm assembly drives the brake wheel rotation; Brake wheel outwards pushes against roller; Drive the brake shoes expansion by roller, the friction that produces between roller and brake wheel and the brake shoes end face belongs to rolling friction, and it is much smaller that its frictional force is compared sliding friction; And fretting wear is not concentrated on certain several point or face of roller; Thereby reduced the wearing and tearing of component, made drum stop and still have insensitivity preferably after the use for a long time, prolonged the working life that drum is stopped; In addition, adopt roller to drive brake shoes, increased braking moment, the vehicle braked effect is strengthened, and the braking coasting distance shortens greatly;
2, adopt the profile of tooth engagement between roller and the brake shoes, can prevent effectively that roller from skidding in brake process, improve the brake reliability that drum is stopped, also can prevent the roller dislocation simultaneously, improve the stationarity of roller motion, continue and improve the brake stability that drum is stopped.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
The structural representation that Fig. 1 stops for existing drum;
The structural representation that Fig. 2 stops for the utility model drum;
Fig. 3 is the C-C sectional view of Fig. 2;
Fig. 4 is the B place enlarged view of Fig. 3;
Fig. 5 is the A place enlarged view of Fig. 2.
Embodiment
With reference to Fig. 2-4, a kind of safety drum is stopped, and comprises shell 1, a pair of brake shoes 2 and brake arm assembly 3; One end of brake shoes 2 is transferred on shell, is provided with the brake wheel 4 that is connected with brake arm assembly 3 between another end gap of brake shoes 2, and butt has roller 5 between brake wheel 4 and the brake shoes 2; The position structure that also comprises roller 5; Position structure comprises positioning plate 6, and positioning plate 6 is provided with restraining groove 61, and roller 5 is provided with the convexity that embeds this restraining groove 61; When brake wheel 4 promotes roller 5; Roller 5 moves in the track that restraining groove 61 sets all the time, and its principle can not done detailed description at this with reference to the patent No. " 2011203340168 " of application before the claimant, the utility model patent that name is called " a kind of novel drum is stopped ".
The utility model adopts the profile of tooth engagement with roller 5 and brake shoes 2 on existing drum is stopped the basis, can prevent effectively that roller 5 from skidding in brake process; Improve the brake reliability that drum is stopped; Also can prevent simultaneously roller 5 dislocations, improve the stationarity of roller 5 motions, continue and improve the brake stability that drum is stopped.Explain the characteristics of the utility model below in conjunction with concrete embodiment:
With reference to Fig. 5; The end face of brake shoes 2 butt rollers 5 is provided with rack member 21, and roller 5 is provided with first flank of tooth with rack member 21 engagements, rack member 21 and brake shoes 2 one; Also can be external parts; The two ends of rack member 21 also are provided with spacing preiection 22, utilize spacing preiection 22 can better limit the range of movement of roller 5, prevent its dislocation.
As for the brake principle of the utility model equally can the application reference people before the patent No. " 2011203340168 ", the utility model patent that name is called " a kind of novel drum is stopped " of application, do not do detailed description at this.
Except that above-mentioned preferred embodiment; The utility model also has other mode of execution; Those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from the spirit of the utility model, all should belong to the defined scope of the utility model accompanying claims.
Claims (8)
1. a safety drum is stopped; Comprise shell, brake shoes and brake arm assembly; One end of said brake shoes is transferred on said housing; Be provided with the brake wheel that is connected with said brake arm assembly between another end gap of said brake shoes, butt has roller between said brake wheel and the said brake shoes, it is characterized in that: be the profile of tooth engagement between said roller and the said brake shoes.
2. a kind of safety drum as claimed in claim 1 is stopped, and it is characterized in that: the end face of the said roller of said brake shoes butt is provided with rack member, and said roller is provided with first flank of tooth with said rack member engagement.
3. a kind of safety drum as claimed in claim 2 is stopped, and it is characterized in that: the two ends of said rack member are provided with spacing preiection.
4. a kind of safety drum as claimed in claim 2 is stopped, and it is characterized in that: said rack member and said brake shoes one.
5. a kind of safety drum as claimed in claim 2 is stopped; It is characterized in that: said brake wheel is provided with the rotation rolling edge face that the rotation that promotes the roller rotation drives edge face and the rolling of confession roller; It is the arc surface of indent that said rotation drives the edge face, and said rotation rolling edge face is the arc surface of evagination.
6. a kind of safety drum as claimed in claim 5 is stopped, and it is characterized in that: be the profile of tooth engagement between said rotation rolling edge face and the said roller.
7. a kind of safety drum as claimed in claim 6 is stopped, and it is characterized in that: said rotation rolling edge face is designed to gear hobbing face, and said roller is provided with second flank of tooth with said gear hobbing face engagement.
8. stop like claim 1 or 7 described a kind of safety drums, it is characterized in that: said roller is a Cylindrical Gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200907509U CN202441769U (en) | 2012-03-12 | 2012-03-12 | Safe drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200907509U CN202441769U (en) | 2012-03-12 | 2012-03-12 | Safe drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441769U true CN202441769U (en) | 2012-09-19 |
Family
ID=46823221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200907509U Expired - Lifetime CN202441769U (en) | 2012-03-12 | 2012-03-12 | Safe drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441769U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588471A (en) * | 2012-03-12 | 2012-07-18 | 许志明 | Safe drum brake |
| CN104179852A (en) * | 2014-08-15 | 2014-12-03 | 长兴华亿机电有限公司 | Safety braking drum brake |
| CN104179851A (en) * | 2014-08-15 | 2014-12-03 | 长兴华亿机电有限公司 | Drum brake |
| CN110500368A (en) * | 2019-07-22 | 2019-11-26 | 高邮市顺达动力机电有限公司 | A kind of New drum type braking mechanism |
-
2012
- 2012-03-12 CN CN2012200907509U patent/CN202441769U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588471A (en) * | 2012-03-12 | 2012-07-18 | 许志明 | Safe drum brake |
| CN104179852A (en) * | 2014-08-15 | 2014-12-03 | 长兴华亿机电有限公司 | Safety braking drum brake |
| CN104179851A (en) * | 2014-08-15 | 2014-12-03 | 长兴华亿机电有限公司 | Drum brake |
| CN104179852B (en) * | 2014-08-15 | 2016-09-07 | 长兴华亿机电有限公司 | The drum of a kind of safety arrestment is stopped |
| CN104179851B (en) * | 2014-08-15 | 2016-09-07 | 长兴华亿机电有限公司 | A kind of drum is stopped |
| CN110500368A (en) * | 2019-07-22 | 2019-11-26 | 高邮市顺达动力机电有限公司 | A kind of New drum type braking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGXIN HUAYI MACHINERY CO., LTD. Free format text: FORMER OWNER: XU ZHIMING Effective date: 20140428 Free format text: FORMER OWNER: XU WENTAO Effective date: 20140428 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140428 Address after: 313117 Zhejiang city of Huzhou province Changxing County coal town of Xinmin Village Patentee after: CHANGXING HUAYI ELECTROMECHANICAL CO., LTD. Address before: 313117 Zhejiang city of Huzhou province Changxing County coal town of Xinmin Village Patentee before: Xu Zhiming Patentee before: Xu Wentao |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 313117 Industrial Park, Changxing County Town, Changxing County, Huzhou Patentee after: Changxin Lola mechanical and Electrical Co., Ltd. Address before: 313117 Xinmin village, coal Hill Town, Changxing County, Huzhou, Zhejiang Patentee before: CHANGXING HUAYI ELECTROMECHANICAL CO., LTD. |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Luyuan Electric Vehicle Co., Ltd. Assignor: Changxin Lola mechanical and Electrical Co., Ltd. Contract record no.: X2019330000002 Denomination of utility model: Safe drum brake Granted publication date: 20120919 License type: Exclusive License Record date: 20190808 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Zhejiang Lvyuan Electric Vehicle Co.,Ltd. Assignor: CHANGXING LUOLA ELECTROMECHANICAL Co.,Ltd. Contract record no.: X2019330000002 Date of cancellation: 20210712 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |